Temperature and Concentration Dependence of the Mechanical Properties of Boride Composites with the Influence of the Interactions between the Constituent Parts

摘要

Quasibinary boride-boride eutectic systems are one of the most important composites forcreating functional materials and ab initio study of their physical and mechanical properties arehighly relevant to the needs of modern-day industry and technology. Mechanical properties ofthe composite LaB_6 – MeB_2 (Me – Ti, Zr, Hf) were studied based on the results of computersimulation using the pseudopotentials method. On the basis of a mixed model (calculations ofinternal energy of the quantum - mechanical methods and the construction of thethermodynamic potentials of the Helmholtz) for composites into account the effect borders onthe mechanical properties of components. The dependence of the mechanical properties of thecomposite on the temperature and concentration.